Power losses at non-optimum SWR

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From: watkins (watkins@socketis.net)
Date: Sun Mar 02 1997 - 13:32:01 EST


Dear Friends,

With several different posts regarding the losses inherent in
different commercial antenna tuners, and the QST artical
documenting the losses measured in four common units, I have
wanted to find a chart which I have seen which states what
the power losses are you aren't 1:1.

My base antenna is a Gap vertical, which is under 2.5 to 1
(often much better) in the different fx I use. So my question
is, what are the losses from the mismatch as-is, so I might
consider whether I am better off just accepting them, rather
than taking on the losses from my tuner (10% minimum, it would
appear) in order to be 1:1.

The table I've seen states it simply - as in: a SWR of 1.8:1
yields you XX% of your input power. Can anyone direct me to
this table or send me a copy? Please e-mail me privately, and
post to the group if you think it appropriate.

TNX ES 73 DE Daniel W3DW
watkins@socketis.net


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